Magnetic controlling device for railways.



A. H. FOX & A. W. LENDEROTH.

MAGNETIC CONTROLLING DEVICE FOR RAILWAYS.

' APPLICATION HLED APR.30. l9l5. 1,298,029

Patented M31225, 1918. I my, 2 SHEETSSHEET l.

I My 0% WMVHRXQQX A A A. H. FOX 6 'A. W. LENDEROTH.

MAGNETIC CONTROLLING DEVICE FOR RA|LWAY APPLICATION FILED .APfl IiQ. 1915.

1,298,029 Patented Mar. 25,1919.

k 2 SHEETSSHEET 2- i yklllllllyllll 4 M VIM Snow docmfl GHQ (3425 s I .wsrmi H. FOX, or new YORK, AND

MEGNE'I'IC CDNTROLLING DEV'ZCE FGB BIZ-121V] AYS.

Specification of Letters Patent.

Patented Mar. 25, 1919.

Application filed April 34?, 1915. Serial ll'o. 24%81.

To all whom it may concern:

Be it known that we, AUSTEN H. For; and ARNOLD W. Lnnm'aorn, both citizens of the United States, residing at, respectively, New York, county and State of New York, and Stapleton, county of Richmond, and

tate of New York, have invented certain new and useful Improvements in Magnetic Controlling Devices for Railways, of which the following is a full, clear, and exact description.

The invention upon which is hascd the present applicationtor Letters Patent, portains to the general class of railway signaling or controlling devices, and is an improvement in the class of apparatus hereto fore set forth and dcscrihcd in patents granted to Austen H. Fox No. 1,088,814. and to Fox and Lenderoth No. 1,007,192.

More specifically stated, the improvement rcsidcs chiefly in the electromagnctic straw tli're adapted to he mounted on, or car 'ied hy, a movable vehicle or unit, and designed to be influenced by an armature either comprising or -o-rXtcnsiYc with the rail or rail; of the track, and to be operated by properly constructed and located interruptions in the magnetic continuity of said armature, although the invention as a whole includes other features or details, as will hereinafter more fully appear.

The new clcctromagnct devised for this purpose is one having a core supported in a vertical position above the track or a continuous armature and carrying at its lower end two clcn'icu'ts or feet, mm ahle one with respect, to the other in the plane of the track, which, being: of the same magnetic polarity, would he normallyrepelled one hy the other and scparatlal, but which are hot-h attracted by the rail or armature and held normally in close relation.

The movable element 01' elements of the magnet are caused to control electric circuits, which contain any suitable devices for imlicating the o 'ieration of such magnet or magnets, or for rendering their movement or operation effective for any other (llh'll'l'll purposes, such as speed control, or the like. so that by the installation along the right of way of properly designed means for operating the movable elements of the magnets, an desired signal or indication may be given or withheld from the operative in control of the vehicle, or any other similar resultma be secured, by means of devices more simple in construction and certain in operation than any that. have heretofore been used for such purposes.

The nature and purpose of the invention will he hotter understood from the detailed description of the apparatus illustrated in the acc ai'ipanying drawing, to which ret crcncc will now he made.

Figure 1 is a side View in elevation of the electroanagnet; attached to a car truck and showing a section of the cooperating rail or arnniturc.

Fig. 2 is an end View oi? the same, showing the rail in section.

l igr. Z3 is a section of the rail showing a modification oi the monitor or controlling devices associated therewith.

Fig. l a top plan View ot Fig. 1.

ig. ."i is a. diagrammatic illustration of circuit connections and devices in conned tion with a. series ot magnetic cores associated with the track.

l i a. t3 an enlarged part sectional and sidc \"icw ot' the detector magnet.

l ig. 7 is a central cross section of the same.

8 is a top plan View of Fig. (3, Fig. I

9 is an enlarged view in perspective of one o't the movable magnet elements, and

Fi i. tions.

in the description which follows like numerals of reference are used to designate similar parts in all oil these figures.

in Fig. 1 the numeral 1 indicates an iron or steel car wheel mounted in a journal hearing 2 carrying or supporting the end of the equalizing bar 3. Near the end of the latter is securod, in. any proper manner.

10 is a. diagram of circuit connco .either permanently or otherwise, an arm 4, to which is joined, as hy nuts 5, the verti cal core of an clcctron'iagnet o. This core is bent at right angles, shown in F 1g. 2,

to form an axis on which is supposed the n the, plane of the tracks,

metal case or housing 17 for the movable elements of the magnet. In the form of device herein shown, each of said elements is composed of a magnetic foot or depending portion 7, having a hear ing 8 by means of which it pivotally mounted on, or supported by, the right angle extension of the core 6 and movable thereon and anon-mag nctic counter-poise 9 normally tending to balance the foot in any position which it may occupy with reference to the vertical line passing through its support.

The bearings for the two feet 7 are nonmagnetic and anti-frictional in character, shown-as composed of balls 10 in suitable run-ways, and each foot is preferably, although not necessarily, or what is known as a kicker 11 extend-- ing across the path traversed by the foot.

To each counterpoise 9 there is secured, but insulated therefrom, a metal plate 12, the upper edge of which extends up between 'pairsof contact points, of which three sets 13, 14 and 15 are here shown, secured to an insulating support in the hous ing 17. By the use of two contacts between which the plate 12 moves, the objectionable efi'ects of vibration are entirely at ideal and the circuit permanently closed tlnough the contacts when engaged by the metal portions of the plate 12. The plates 12 contain inserts 16 of insulating material, one 01 which lies feet are hid in close relation by the attraction of tin armature or rail, and the other of which comes between points 13 when, on the absence or cessation of such attrac tion, the feet are repelled and separated. The relations of these parts is such that the contacts are broken fora certain period during the passage of a foot from one position to the other.

Immediately under the antifrictional bean ing 8 is a fixed stop 18, which lies between projections 19, and limits the in opposite directions.' the feet are attracted by the rail, their inner projections 19 are held against this stop 18, but when the attraction ceases, the two feet swing part until the outer projections 19 are arrested by the stop 18. For the operation of the electromagnet, sections of track are provided at the desired or proper oints which are non-magnetic.

or examp e, the carbon replaced by a section of predetermined length of manganese-steel rail 20, so that when the magnet passes over such section its feet become separated by their own magnetic repulsion.

It may often become necessary or desirable, however, to cut out the non-mag'ncti:v cfi'ect of a manganese steel section to a movements of these elements That is to say, when rovided with a toe,

between the points 15 when the" on the movable elements 7,

time must be sufficient steel rails may beneeaoao greater or less extent, and this may 705m plished in various ways. For example, an iron or stcelbar or T-iron 21 may be provided with means forthrowin position alongside the head 0% nese rail where it will exert efi ect on the movable parts netic the mangaof the inag core, as indicated in Fig. 2. Or, in

it up'into-a an attractive lieu of the magnetic bar, afseries of ens-11.,

rest, are attracted by them in such manner as to be retained in their'close relation to one another.

applications of in the practical theinven tion one of the above described magnetic do yic'es is used on each side of the vehicle and is suppprted in such relation to thdgtra'ck and to ,one of the cat wheels that the latter forms, a path for the'magnetic lines developed by the core and passin other pole of the same. efliciency of the magnet is creased.

The primary and most im ortant very greatly in object advantage of the fact that a movable magnetic element requires a given time to move under magnetic influence from one position to another, and that the track can be so argiven length, either by means of a path composed of a magnetic substance, or by the creation of a magnetic field of given len h along the right of Way. The length of time of the presentation of this magnetic influonce may depend upon and be variedby the speeu of the vehicle on which the primary magnetic member is located, and the l to permit the: member to move from a given position against the resistance to motion due to the in i'tia of its parts while the magnetic efl'ect is being exerted.

By the movements ofthe magnetic memhere between their tion and repulsion, any desired-effects may be produced, as for example, the-lighting of two lamps or sets of lamps, as may be understood by reference to Fig, 10. In this figure the pairs of contacts represented by the numerals 13, 14 and 15, ar connected up with a source oi current 25 and with groups of lamps 26 and 27. this figure in connection with Fig. 6, it will be seen that when the plates 12 are in the position maintained of the armature members, the portions of the from one to the j n this"way the vof the invention above descI'i d, is to take ranged as to representv a magnetic efiect of Examining by an attractive e'fi'ect circuit 28 and 29 are connected throughthe battery and lamps 26, but that when the armature members are repelled, the lamps "27 are brought into circuit with the source and portions of the circuit 29 and 30.

The external track conditions are thus indicated on the moving unit, and these can be so arranged as to require certain fixed periods of time to elapse in order to effect their manifestation.

The absence altogether of these magnetic influences, it will be seen, will result in a given manifestation on the moving unit. The presence or return of the influence, say, by the positioning of a T-iron alongside the outside head of the rail, will produce an eflect or, the outside or by-pass foot 7 and return it from a repelled to an attracted position.

It Will thus be seen that it is only necessary-to the attainment of a given result that the magnetic efiect be present long enough to overcome the inertia of the by-pass foot, and this means duration of magnetic effect along the right of way for a sufficient distance to enable it to be effected at the highest rate of speed. This condition will exist in actual practice Whenever a clear indication is to be transmitted to the moving unit, and represents the additional length of magnetic effect Which is under thecontrol of the signals over the permanent effect at each point established to represent the safe speed when these signals are set at stop. This amount of permanent efi'ect will be a permanent magnetic path, the additional effect. being either a movable magnetic path or a series of magnets or magnet coils. I

Where no speed is permitted when signals that control the relay 24, for example, are set at stop, then the external magnetic effect is entirely removed and only presented when the clear condition exists.

For energizing the detector magnet there may be employed a batteryBl, or other suitable source of current, in a circuit which is constantly closed, and which will give some signal or indication of its failure to act, or of its groundin The movable ole; elements may be designed to all have same time element in operation, related as maybe necessary to the working conditionsdand the device may be used for many purposes and in many wa s, either singly or collectively, and in various operative relations which need not be further explained herein, as the principles of suchflopcration have been fully set forth in the patents above referred to.

The advantages of the device, constructively and operat-ively considered, are believed to be sufficiently apparent to call for no more detailed explanation or description.

What we claim is:

1. A detector magnet for systems of rail- &

way signaling or control, adapted to be carried by a. moving vehicle in proximity to an extended armature, comprising a magnetic core bent. at right angles to term a bearing for two magnetic elements movable in the plane of the track, and which, being of like magneti polarity, are repelled and forced apart, but by the attraction thereon of the armature are drawn into close relation.

2. A detector magi'iet for systems of railway signaling or control, adapted to be carried by a moving vehicle in proximity to an extended armature, comprising a magnetic core pivot-ally supporting two magnetic elements movable in the plane of the track and having non-magnetic counterpoises, the said elements being of like magnetic polarity whereby they are repelled and forced apart by magnetic repulsion, but by the attraction therefor of the ari'nature they are drawn into close relation.

3. A. detector magnet for systems of railway signaling or control adapted to be carried by a moving vehicle in proximity to an extended armature, comprising a magnetic core, two magnetic elements movable thereon which, by being of the same polarity, are repelled and forced apart, but which, by the attraction of the armature, are drawn into close relation, electric circuit controllers operated by the movable elements and adapted to be opened and closed by the movements of the same, due to breaks in the magnetic continuity of the armature.

4. The detector magnet herein described, comprising a magnetic core carried by a vehicle in proximity to the track, two magnetic ieet pivotally mounted thereon by anti-frictional bearings and movable in the plane of the track, counterpoises connected. with the feet, circuit ontrolling plates carried by the counterpoises and contacts in engagement with which the said plates are adapted to move.

5.'The detector magnet herein described, comprising a magnetic core carried by a vehicle in proximity to the track, two counterpoisced magnetic elements pivotally supported on said core and movable in the plane of the track, stops for limiting the movements imparted to said elements'by repulsion between them and by the attraction of the rail for them, and circuit controllers operated by the nioven'ients of said elements.

--(3. In a railway signaling or control sys tom, the combination with a moving vehicle, of a movable magnetic element having by reason of the inertia of its parts a constant time action in response to a given attractive forces, of a magnetic armature element made of definite length (-orrespoiuling to the time required by the movalblc magnetic element to 7. In a railway tom, the comblnatl signaling 01' control on Wlth moving vehicle,

of a circuit controlhng devlce comprlsmg ing interruptions in its magnetic continuity along the right of Way to the znqvabl n testlmon tures.

AUSTEN H. FOX. ARNQLD V. LENDEROTH. 

